Manual scraping-machine.



PATENTED SEPT. 24, 1907.

H. W. BLAISDELL.

MANUAL SGRAPING MACHINE.

APPLICATION PILED NOV. 16, 1904.

5 SHEETS-SHEET 1.

. INVENTOH W W 0%@a% M A omv y WITNESSES PATENTED SEPT. 54, 1907.

H. w. BLAISDBLL. v MANUAL SGRAPING MACHINE.

APPLIOATiON FILED NOV. 18, 1904.

'6 SHEETS-SHEET 2.

\ WITNESSES:

zzwwww No.867,'003- PATENTED SEPT. 24, 1907.

H. W. BLAISDELL.

MANUAL SCRAPING MACHINE. APPLIOA'TION FILED m. 16, 1904.

' 5 SHEETS-SHEET s.

.INVENTOR WITNESSES:

-3 ,003; PATENTED SBPT.24, 1907.

. H. W. BLAISDELL.

MANUAL SGRAPING MACHINE.

APPLICATION FILED NOV. 16. 1904.

' 5 SHEETS-SHEET 4.

' I BY Zfi MM M M A Mano/my PATENTBD SEPT. 24, 1907. H. W. BLAISDELL. I MANUAL SORAPING. MACHINE 6 SHEETS-SHEET 6.

AIIPI'LIOAEIIOK FILED NOV. 16, 1904.

'ITT- UNITED STATES PATENT OFFICE.

HIRAM W. BLAISDELL, OF LOS ANGELES, CALIFORNIA; v

MANUAL SCRAPING-MACHINE.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed November 16, 1904. Serial No. 238,001.

'of the invention, such aswill enable others skilled in the art to which it appertains to make and use the same. This invention relates to means for operating upon filtration plants, or filter beds, and particularly to means constructed tooperate upon partially or entirely covered filtration plants or slow sand filter beds; and some of the objects of the invention are to provide means of this general character which is simple and cheap in construction and operation and effective for the purpose intended. I

Another object of the inventionis to provide means constructed to travel on the surface of a filter adapted to remove the filtering material 03 or from filtration plants, or filter beds, to any desired depth; and to accomplish this operation mechanically in a rapid and eflicient manner.

A further object of the invention is to provide surface traction means so constructed as to be capable of movement over the entire surface of the filter, and around or adjacent to the piers or supports for the roof of covered filtration plants, or filter beds, or other obstructions of'the same.

It is also anobject of the invention to provide means for the conveyance to, and discharge into, the machine.

of a fluid vehicle'continuously throughout the entire movement or operationof the machine.

Furthermore an object of the invention is to provide means for conveying or discharging the foul filtering material or' fluid from the surface operated upon,

through the employment .of a fluid vehicle.

Still another object of the invention is to provide simple and compact means for conducting the filtering material into the conveying element or fluid vehicle; and to provide means which is capable of manual operation in any direction.

With these, and other, objects in View the invention consists essentially in. the construction, combination and arrangement of parts substantially as more fully described in the following'specification, and as illustrated in the accompanying drawings, forming part of this application, in which Figure 1 is a top plan view of the machine; 2 is a side elevational view of the same; 3 is alongitu- .dinal central, sectional view of the machine, Fig. 4 is a front elevational view of the machine; Fig. 5 is an enlarged detail view, partly in sectiomof a form of ejector which maybe employed; Fig. 6 is an enlarged detail end view of the same; Fig'. 7 is a top plan view, partly broken awfi-y, 0f the supporting or traction portion;

Fig. 8 is a perspective view, partly broken away, of a portion'of the driving mechanism; and Fig. 9 is a detail view of a portion of the support.

Similar characters of reference designate corresponding-parts throughout the several views.

This invention is particularly adapted for use with filtration plants, or filter beds, which are partially or entirely covered, or roofed over, and especially such plants or beds as are generally known as slow sand filfiltration plants or filter beds, and for other purposes; however, in this application the invention will be described in connection with, or' as operating upon, a slowsand filter bed. Before the machine is put into operation the water, upon the filter bed to be operated upon, should be drawn off partially or entirely to allow the operation of the machine. Whenever the yield of filtration plants, or filter beds, is diminished to such an--extent or degree that enough water'cannot be. obtained therefrom, it is has become clogged, and it then becomes necessary toscrape the filter bed; or removethe upper portion. of the same; which, in the case ofpartially or entirely covered filters, is generally done b'y laborers, using shovels of extra width and long handles, who remove the surface portion, of the filter, varyingfi'om one-half to gneinch in thickness, the filtering'material so 're-, moved beingthrown into piles a convenientdistance apart. Whereupon the filtering materialso piled'up to be washed or treated, thereby entailing-a great expense of money and time, during which time the filter is rendered useless.

construction illustrated in Figs. 1 to 4 thereof both intubular extension of socket 3, to receive a handle 4 or other device, by means of which the machine maybe controlled or directed during the operation thereof,

In the sides of the frame, near the rear end 2 thereof, are preferably formed bearings 5, Fig. 2, desirably for a tubular supporting or pivot shaft 6, which preferably passes th ough extensions or trunnions 7, on a supporting or carrier frame '8, desirably rectangular in form,

and constructed be movable within the main franie 1, upon the shaft 6, as a pivot or axis. 7

The supporting frame 8 is preferably provided at one movable or adjustable bearings 10, mounted in slots or guides 11, in said end, and adjusted by means'bf a set screw 12, for the purpose of tightening the endless supporting device, hereinafter described.

Journaled in the bearings 9 and 10 are tubular or ters, although the invention can be used upon open evident that the surface thereof- Referring to the drawings, and particularly. the

endwith fixed hearings 9, and at the other end is shoveled into wheel-barrows and wheeled away to the place where the foul or contaminated material is v clusive, the reference character 1 designates a frame, or casting, preferably rectangular in form, and formed on,v or connected with, .the rear end, 2 of the frame is a other shafts 13, whereupon are preferably mounted sets of toothed or sprocket wheels 14, Figs. 2, 3 and 6, constructed to engage and drive sprocket or other chains 15, Figs. 2, 3 and 9, desirably carrying rollers or sheaves, the shafts whereof are extend ed and journaled in brackets or other devices 16, and carry rollers 17, adapted to travel in channels 18, in the face of the supporting frame or side plates 8; and to' the brackets 16 are secured slats or strips 19, substantially as illustrated particularly in Fig. 9 of the drawings.

By means of the construction just described a broad supporting surface or tread is formed for the machine, and one whereon the weight is equally and uniformly distributed over the entire surface of the supporting frame which is in contact with the crust or top of the filtering material; thus preventing the liability of breaking through the filter crust, and allowing the water to enter therebelow, or unduly compressing or packing the filtering material.

By reason of the supporting frame 8 and the main frame being both pivoted or movably mounted upon the shaft 6, the forward portion of the main frame can be elevated by depressing the handles, and the machine can be directed'or operated in the desired direction, substantially as hereinafter more fully explained.

Formed on, or connected with, the forward corners of the main frame 1, are curved or depending arms 20, having slots 21, to receive adjusting bolts or devices 22, carried by the end plates or extensions 23, of a shoe or curved regulating plate 24, constructed to travel on the crust or surface of the filtering material in advance of the machine, and regulate the depth of the cut to be made thereby, as shown in Fig. 3 of the drawings.

Near the forward end of the main frame 1, and upon the side members thereof, are preferably formed depending extensions or bearings 25, Fig. 2, wherein is journaled a tubular or other shaft 26, preferably carrying a main conveyer 27, or right-and-left-hand endless screw, and intermediate of the ends of said shaft 26 is preferably secured the tail pulley, or toothed wheel 28, Fig; 3,'of an endless-belt bucket elevator'or other elevating device 29, also passing over a driving pulley 30, on a shaft 31, preferably journaled in an upright portion 32 of the main frame; and the shaft 31, desirably carries a gear wheel 33, meshing with an idler 33 driven by a pinion 34-, on a shaft 35, having a sprocket wheel 36, chained to a small sprocket wheel 37, on the drive shaft of an electric motor or other driving apparatus 38, substantially as shown. i

Upon the shaft 31, of the driving elevator-pulley 30, is secured a sprocket wheel 39, chained to a sprocket wheel 40, upon a shaft 41, jonrnaled in vertical arms 42, formed on or connected with, thefront portion of the main frame 1; an'd the shaft 41 preferably carries another sprocket wheel 43, chained to a similar wheel 44, splined upon the shaft 45, of auxiliary or wing conveyers, or rig'ht-and-left-hand endless screws 46. Screws 46 carry collars 47 to retain bearings 48, slidably mounted on the front of main frame 1, in position on the inner ends of screws 46, said bearings 48 forming sliding bearings for said screws and the outer ends of shaft 45, said shaft also being journaled in a fixed bearing 49, in the end of a depending arm or hanger 50, connected with the front of the main frame 1, substantially as shown. By reason of the constructionjust described one or other of the auxiliary conveyers or scrapers 46 may be extended or retracted according to necessity of the situation in which the machine may at the time be placed, as for instance when it is desired to scrape the surface around or adjacent to a supporting pier or other obstruction, which is out of the then line of travel of the machine.

The extension and retraction respectively of the auxiliary conveyers or scrapers 46, is preferably accomplished by means of two cablesor ropes 51 and 52, Figs. 1, 2 and 4, and each of which is attached at both ends to one of the movable bearings 48, carrying the auxiliary conveyers 46, and the rope 51 passes from the bearing 48, of the extended conveyer 46, around the sheave 55, in the corner of the main frame adjacent thereto, thence around the sheave 55, at the rear of said frame, after which the rope 51 crosses beyond the handle 4 and around the sheave 53, Fig. 1, thence alongside of said handle to and around one of the sheaves 56, in the end of the handle, to and around the sheave 54, thence across to the sheave 55, at the other rear corner of the frame 1, along the side of said frame to and around the sheave 55, at the front corner of the frame and finally along the front thereof to the movable bearing 48, to which the other end of the rope 51 is attached. The other rope 52 is preferably attached at one end to the movable bearing 48, of the retracted auxiliary conveyor 46, passing from thence, along the-front of the frame 1, to and around one of the sheaves, 55, at the adjacent front corner of the frame, thence along that side thereof to and around the sheave 55, at that rear corner of said frame; from whence the rope 51 crosses beyond the handle 4 to and around the sheave 54, and alongside of the handle, to and around one of the sheaves 56, at the end of said handle; and returns along the other side thereof to and around the sheave 53, crossing to the sheave 55, at the opposite roar corner of the frame 1, along the side thereof to and around the sheave 55, at the front corner of said frame and finally along the front of the same, to the movable bearing48, of the said retracted conveyer 46 to which the other end ofsaid rope is attached.

In order to facilitate the operation of the ropes 51 and 52, and effect the resultant alternate extension and retraction of the auxiliary conveyers 46, knobs or other devices 59 may be connected with said ropes or any other means may be employed, to actuate or reciprocate the said conveyers.

The machine is preferably propelled or progressed over the crust or surface of the filter, whereon the machine is operating by means of a sprocket wheel 60, chained to a large sprocket wheel 61, secured upon a shaft 62, journaled in an extension 63 of the main frame 1; and the shaft 62 preferably carries a pinion 64, meshingwith a large gear wheel 65, on the pivot shaft 6, and on the hub of the wheel 65, is secured a pinion 66, engaging a large gear wheel 67, on' the shaft 68, Figs. 1, 7 and 8, whereon is mounted a clutch 69, constructed to engage a clutch-member 70,

on a pinion 71, loose on the shaft 68, and meshing permitting the full operation of the mechanism car-' ried thereby during the travel of the machine.

The machine is desirably propelled in a rearward direction, orbacked up, through. the mediation of the clutch 69, engaging the clutch-member 80, on the pinion 81, upon the shaft 68, and meshing with an idler 82, engaging a pinion 83, keyedon the propelling shaft 73, carrying .the sprocket 78, chained to the sprocket79, on the supporting shaft 13, of the said supporting and traction device.

Referring particularly to the construction illustrated in Figs. 1, 3, 5 and 6 of the drawings, there is shown a aim of discharging apparatus, which may be that of an ordinary hydraulic sand ejector, preferably embodying a main-portion or casting 84, having trunnions 85, carried by arms or a yoke 86, mounted on the pivot shaft 6; and the main portion 84 is provided with an inlet and outlet connection 87 and 88' respectively attached to flexible inlet and outlet tubing'or hose 89 and 90; and the inlet hose 8 9 is preferably connected with the source of fluid supply, and .the'fiuid ispreferably delivered to the ejector under pressure, as will be readily understood. The outlet hose 90 desirably communicateswith the plac'e'of deposit of mean or contaminated filtering material, or with asand washer as may be found desirable; and inlet and outlet nozzles.

whereby the material is discharged into the receiver 93 by the elevator 29,'and is directed by the former into the ejector 84; "and a perforated pipe 94, may be mounted in the upper'portionj'bf the receiver, and

may be connected with the inlet pipe 87, whereby the material discharged into the receiver may be washed down into the ejector and be conveyed from the machine.

The operation of the machine will be readily understood from the foregoing description, when taken in connection with the accompanying. drawings, and the following explanation thereof. The machine being in operative position in or upon the filter to be operatedupon, the motor. 38 is started, thereby rotating the sprocket 60, chained 'to the sprocket 61, upon the shaft whereof is securedthe pinion 64, meshing with the gear 65, upon the shaft of which is keyed the pinion 66, engaging the gear 67 upon the clutch shaft 68, carryingtheclutch 69, and reduction gearing engaging similar. gearing on propelling shaft 73, carrying the sprocket 78, chained to the sprocket 79, on one of the supporting shafts 13, carrying the sprocket wheels 14, actuating the said supporting and traction device, substantially as before explained. The starting of-the 'electric motor 38 simultaneously imparts motion to the sprocket 37, chained to the sprocket 36, on theshaft preferred construction, I

35, carrying the pinion 34, engaging the idler. 33, meshing with the gear 33, on the shaft 31, carrying the driving pulley 30, of the elevator 29; and thetail conveyer. shaft 26, carrying the main conveyer 27, as -before explained. The sprocket 39, on the shaft 31, is chained to the sprocket 40, on the shaft 41, carrying the sprocket 43, chained to the sprocket 44, on the shaft 45; of the auxiliary conveyers 46; whereby both of the scrapers or conveyers are driven fronithe drive of the elevator. The scrapers or conveyers progress the material towards the middle of the machine, one or other of the auxiliary conveyers being extended, by means of the ropes 51 and 52, to reach that portion of the surface around or between the piers or obstructions, and the elevator takes up the material delivered to it, by the scrapers, and discharges the same into the receiver, where it is washed down by the'spray or water jets from the perforated pipe 94, into the bottom of the receiver, to be expelled therefrom by the jet of fluid passing through the inlet hose, and escaping'fromthe nozzle thereof, the incoming fiuid carrying away with it the material in the bottom of the receiver,-or more properly stated, the material "in the ejector, which material is conveyed, through the hose 90 to the place ofdeposit.

It is not'desired to limit orconfine this generic invention to the specific construction, combination and arrangement of parts herein shown and described; and the right is reserved to make all such changes in, and modifications of, the same as come within the spirit and scope of the broad character of the invention.

Claims 1. A machine for operating upon filters comprising traction means adapted to travel on the surface of the filter bed, a carriage pivotally supported on said traction means, sand removal means mounted in said carriage and mechanism for operating the parts.

2. A machine for operating upon filters comprising .fiex-ible traction means adapted to travel on the surface of the filter bed, a carriage pivotally supported on said flexible traction means, sand removal means mounted in said carriage and niechanismfor operating the parts. I

3. A machine for removing material from filters com-' prising sand removal means, a main frame supporting the same,.a secondary supporting frame removably connected therewith and adapted to rest on the surface of the filter bed so that the. machine may be guided in any direction andlmean's for operating the parts.

4. A machine for removing material from filters coma second frame movably connected therewith, a flexible pulley 28, of said elevator, imparts motion to the main llO prisingsand removal means, a supporting frame therefor" traction device mounted in said second frame and adapted to rest on the surface of the filter bed and mechanism pricing sand removal means, a supporting frame therefor,

a second. frame pivotally connected therewith, gfiexlble traction means mounted on said second frame and a motor .for driving said flexible traction means andfor operating the sand-removal means. 1 I

6. A machine for operating upon filters comprising sand removing'means, a mainframe supporting the same. a secondary. supporting frame movably connected therewith and adapted 'to rest on the surface of the filter 'bed and flexible traction means supported in said secondary frame and comprising an endless belt having transverse slats thereon the parts being so arranged that the machine may be guided in any direction. 1

7. A machine for removing material from filters comprising sandremoving means, asupporting frame therefor,

a'fsecond frame jpivotally connected therewith, flexible traction means having a sectional contact surface mounted on said second frame and a motor for driving said traction means and for operating the sand removing means.

8. A machine for removing material from filters and the like provided with means for guiding the same in any direction at the will of the operator, means for collecting the material in a heap on the surface of the filter bed, a device for removing the collected material, apparatus for discharging the material so collected and removed and mechanism for operating the parts.

9. A machine for removing material from filters and the like provided with a traction portion adapted to rest upon the surface of the filter bed, means for guiding the machine in any direction at the will of the operator, means for collecting the material in a heap, a device for removing the material so collected into the machine, apparatus for discharging the material from the machine and mechanism for operating the parts.

10, A machine for removing material from filters and the like provided with means for guiding the same in any direction at the will of the operator, means for collecting the material in a heap on the surface of the filter bed, an elevator for the material collected by said means, a discharging device to remove from the machine the material raised by the elevator and mechanism for operating the parts.

11. A machine for operating upon filters and the like comprising a carriage adapted to travel on the surface of the filter, means for guiding the same in any direction at the will of the operator, main and auxiliary material collecting devices and mechanism for operating the parts.

12. A machine for operating upon filters and the like comprising a carriage adapted to travel on the surface of the filter, means for guiding the'same in any direction at the will of the operator, main and auxiliary scrapers, means for removing the material collected by the scrapers and mechanism for operating the parts.

13. A machine for operating upon filters and the like comp-rising a carrier adapted to travel on the surface of the filter, means for guiding the same in any direction at the will of the operator, a main collecting device, and an extensible and retractable auxiliary collecting device and mechanism for operating the parts.

34. A machine for operating upon filters and the like comprising a carriage adapted to travel on the surface of the filter, means for guiding the same in any direction at the will of the operator, an extensi-bleand' retractable device for removing material from the surface whereon the machine travels and mechanism for operating the parts.

15. A machine for removing material from filters and the like provided with means for guiding the same in any direction at the will of the operator, means for collecting the material in a heap and for elevating the same, a discharging Qievice, flexible inlet and outlet connections between said. device and a source-of fluid supply and discharge respectively and means for operating the parts.

16. A machine for removing material from filters and the like provided with an endless traction portion adapted to rest upon the surface of the filter bed, main and auxiliary collecting devices, means for removing the material collected by said devices, a discharging device having inlet and outlet connections and mechanism for operatlag the parts.

17. A machine for removing material from filters and the like provided with a main frame, a supporting frame having movable connection therewith, an endless traction device in said supporting frame adapted to rest on the surface of the filter bed, scraping devices, an elevator to remove the material collected by said device, a receiver for the material removed by the elevator, an ejector for effecting the discharge of the material from the receiver and mechanism for operating the parts.

18. A machine for removing material from filters and the like provided with a main frame, a supporting frame movably connectedtherewith traction means on said supporting frame adapted to rest on the surface of the filter bed, mechanism for eifecting the forward and backward travel of the machine, a main scraper, an extensible and retractable auxiliary scraper, an elevator to remove the material collected by said scrapers, a receiver for the material so removed, an ejector to dischargethe material from the receiver and mechanism for operating the parts.

19. A machine for removing material from filters and the like provided with means for guiding the same in any means for operating the parts.

21. A machine for removing material from filters and the like provided with means for moving it upon the surface of the filter bed, means for collecting the material in a heap and for elevating the same, a hydraulic ejector, means for delivering the material thereto, means for discharging the material therefrom and means for operating the parts.

' 22. A machine constructed to remove material from u filter provided with adjustable means governed by the surface operated upon for controlling the depth of the material removed by the machine, apparatus for supplying,

water to the machine, a device for combining the material and water, means for disposing of' the combined material and water, revolving means for supporting and at Los Angeles, county of Los Angeles, State of California this second day of November 1904.

HIRAM W. BLAISDELL.

Witnesses: I

H. '1. Monnow, MIoNoN Fonz. 

